Bitumen blowing

Details Bitumen blowing Bitumen blowing

1972-12-14

1976-01-27

O'Keefe, Veronica

Mineral oils: processes and products

Oxidation of mineral oils

To form asphalts, tars or pitches

C10G 2700

Patent

active

039350932

ABSTRACT:
A bitumen blowing method comprises blowing air into a body of bitumen to produce an upward flow of bitumen relatively rich in air and a downward flow of bitumen relatively poor in air. The upward flow is agitated to disperse the air therein. A bitumen blowing reactor suitable for carrying out the method comprises a reactor vessel having an air inlet, a dispersion container in the vessel, the dispersion container having a floor provided with a passage therethrough, and bitumen-agitating means disposed in the container. The air inlet is arranged to discharge below the passage. One or more additional dispersion containers each having bitumen agitating means disposed therein may be provided above the first-mentioned container.

REFERENCES:
patent: 2095190 (1937-10-01), Heuscher
Calderbank, Trans. Inst. Chem. Engineers, Vol. 36, p. 444, 1958.

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